List of the Mesozoic life of California

• †Abyssochrysos'' – tentative report • †Abyssochrysos giganteum – type locality for species • †Acaeniotyle • †Acaeniotyle umbilicata – or unidentified related form • †Acanthoceras • †Acanthoceras rhotomagense – or unidentified related form • †Acanthoceras roguense – or unidentified related form • †Acanthoceras sherborni – or unidentified comparable form • †Acanthocircus • †Acanthocircus aculeatus • †Acanthocircus carinatus – or unidentified related form • †Acanthocircus dendroacanthos • †Acanthocircus dicranocanthos • †Acanthocircus meyerhofforum • †Acanthocircus multidentatus • †Acanthocircus polymorphus • †Acanthocircus suboblongus • †Acanthocircus trizonalis • Acanthosphaera – tentative report • †Acanthosphaera lucida • †Acastea • †Acastea acer • †Acastea bipes • †Acastea dura • †Acastea incontraria • †Acastea remusa • †Acastea tenuis • Acesta • Acharax • †Acharax stantoni • Acila • †Acila demessa • †Acila princeps • †Acrioceras • †Acrioceras hamlini • †Acrioceras vespertinum • †Acrodus'' • †Acrodus wempliae – type locality for species • †Acteon • †Acteon inornatus • †Acteon politus • †Acteon sullivanae • †Acteonella • †Acteonella oviformis • †Acteonina • †Acteonina berryessensis – type locality for species • †Acteonina californica • †Acteonina columnaris • †Acusten • †Acusten ordinarius • †Adelodonax • †Adelodonax altus • †Aechmella • †Agnomyax • †Agnomyax monilifer • †Aguileria – or unidentified comparable form • †Alarimella • †Alarimella anae – type locality for species • †Alarimella veta • †Aletopelta'' – type locality for genus • †Aletopelta coombsi – type locality for species • †Alievium • †Alievium antiquum • Amauropsis • †Amauropsis pseudoalveata • †Ambercyclus • †Ambercyclus dilleri • †Ambercyclus morganensis • †Amphidonte • †Amphidonte parasitica • †Ampullina'' • †Ampullina avellana • †Ampullina concipio • †Ampullina mona • †Ampullina oviformis • †Ampullina packardi • †Ampullina stantoni • Amuletum • †Anagaudryceras • †Anagaudryceras mikobokense • †Anagaudryceras sacya – or unidentified comparable form • †Anahamulina • †Anahamulina wilcoxensis • †Anarhynchia • †Anarhynchia gabbi – or unidentified comparable form • †Anasibirites • †Anasibirites desertorum • †Anasibirites kingianus – type locality for species • †Anasibirites lindgreni • †Anatomites • †Anatomites adalberti • †Anatomites damesi • †Anatomites edgari • †Anatomites externiplicatus • †Anatomites intermittens • †Anatomites konnincki • †Anatomites mendenhalli • †Anatomites obsoletus – type locality for species • †Anatomites shastensis – type locality for species • †Anatomites subintermittens – type locality for species • †Anatropites • †Anatropites hauchecornei • †Anchura • †Anchura ainikta – type locality for species • †Anchura baptos – type locality for species • †Anchura californica • †Anchura callosa • †Anchura condoniana • †Anchura falciformis • †Anchura gibbera • †Anchura halberdopsis – type locality for species • †Anchura phaba – type locality for species • †Anglonautilus • †Anglonautilus catarinae • †Angulobracchia • †Angulobracchia bulbosa • †Angulobracchia jasperensis • †Angulobracchia ozvoldovae • †Angulobracchia purisimaensis • †Anisoceras • †Anisoceras draconum • †Anisomyon • †Anisomyon meeki • †Anomalina • †Anomalina pseudopopillosa • , or jingle shell †Anomia'' • †Anomia – type locality for species A – informal • †Anomia jalama • †Anomia lineata • †Anoplophora – tentative report • †Anoplophora shastensis – type locality for species • †Anthonya • †Anthonya cultriformis • †Aphaea • †Aphaea ignota • †Aphanoptyxis • †Aphanoptyxis andersoni • †Aphanoptyxis californica – type locality for species • †Aphrodina • †Aphrodina varians • †Aphrosaurus • †Aphrosaurus furlongi • pelican foot sea snail Aporrhais'' • †Aporrhais veta – type locality for species • †Archaeocenosphaera • †Archaeocenosphaera ruesti – or unidentified related form • †Archaeodictyomitra • †Archaeodictyomitra apiarium • †Archaeodictyomitra inornata • †Archaeodictyomitra oleadita • †Archaeodictyomitra rigida • †Archaeodictyomitra simplex • †Archaeodictyomitra siplex • †Archaeodictyomitra sliteri • †Archaeodictyomitra vulgaris • †Archaeohagiastrum • †Archaeohagiastrum minutum – or unidentified related form • Archaeolithothamnium • †Archaeopus • †Archaeopus antennatus • †Archaeospongoprunum • †Archaeospongoprunum carrierensis • †Archaeospongoprunum cortinaensis • †Archaeospongoprunum elegans – or unidentified related form • †Archaeospongoprunum imlayi • †Archaeospongoprunum klingi • †Archaeospongoprunum macrostylum – or unidentified related form • †Archaeospongoprunum praeimlayi • †Archaeospongoprunum praelongum • †Archaeospongoprunum tehamaensis • staircase shell sea snail Architectonica'' – tentative report • Arcopagia • †Arcopagia tehama • Arctica • †Arctica anthracocola • †Arctica denmanensis – or unidentified related form • †Arctoceras • †Arctoceras tuberculatum • †Areaseris • †Areaseris nevadensis • Argyrotheca • †Argyrotheca retrorsa – type locality for species • †Arnioceras'' • †Arpadites • †Arpadites kingi – type locality for species • Arrhoges • †Arrhoges californicus • †Aspenites – type locality for genus • †Aspenites acutus • Astarte • †Astarte sulcata – tentative report • †Astarte sulcuta • †Astarte tuscana • †Asteroceras • †Astrocoenia – report made of unidentified related form or using admittedly obsolete nomenclature • Ataphrus • †Ataphrus compactus – tentative report • †Atira • †Atractites • †Atractites philippii – type locality for species • †Atresius • †Atresius liratus • †Aucellina – tentative report • †Augustynolophus'' • †Augustynolophus morrisi • Avicula • †Avicula mucronata – type locality for species • †Avicula soperi – type locality for species • †Axonoceras ==B==

• †Bacchites • †Bacchites hyatti – type locality for species • †Bacchites pinguis • †Baculites'' • †Baculites anceps • †Baculites bailyi – or unidentified comparable form • †Baculites buttensis – type locality for species • †Baculites capensis • †Baculites chicoensis • †Baculites fairbanksi • †Baculites inornatus • †Baculites lomaensis • †Baculites occidentalis • †Baculites recta – or unidentified comparable form • †Baculites rex – type locality for species • †Baculites schencki – type locality for species • †Baculites yokoyamai – or unidentified comparable form • †Bagotum • †Bagotum modestum • †Balantiostoma – tentative report • Barbatia • †Barrettia • †Barrettia sparcilirata • †Basilemys'' • †Bathypurpurinopsis • †Bathypurpurinopsis stantoni – type locality for species • † Belleza • †Belleza decora • †Belliscala • †Belliscala meta • Bernaya • †Bernaya argonautica – type locality for species • †Bernaya berryessae – type locality for species • †Bernaya crawfordcatei – type locality for species • †Bernaya gualalaensis – type locality for species • †Bernaya jeanae – type locality for species • †Bernaya kayei – or unidentified related form • †Bernaya louellasaulae – type locality for species • †Bernaya popenoei – type locality for species • †Bernaya rineyi – type locality for species • †Bernoullius • †Bernoullius brokenkettlensis • †Bernoullius cristatus • †Bernoullius delnortensis • †Bernoullius dicera • †Bernoullius irwini • †Beudanticeras • †Beudanticeras alamoense – type locality for species • †Beudanticeras argonauticum – type locality for species • †Beudanticeras breweri • †Beudanticeras brewerii – or unidentified related form • †Beudanticeras haydeni • †Bipedis – tentative report • †Biplica • †Biplica heteroplicata • †Biplica isoplicata • †Biplica michaeli – or unidentified related form • †Biplica miniplicata • †Biplica multiplicata • †Biplica obliqua • †Bistarkum • †Bittiscala • †Bivallupus • †Bivallupus mexicanus • †Bochianites • †Bochianites paskentaensis • †Bolena • †Bolena zancajosa • †Bositra • †Bositra buchi • †Bostrychoceras'' • †Bostrychoceras brewerii • †Bostrychoceras californicum – type locality for species • †Bostrychoceras declive • †Bostrychoceras occidentale – type locality for species • †Bostrychoceras otsukai – or unidentified related form • †Brancoceras • †Brancoceras parvum • †Brasilichnium • †Buchia • †Buchia concentrica – or unidentified comparable form • †Buchia elderensis • †Buchia keyserlingi • †Buchia pacifica • †Buchia piochii • †Buchia terebratuloides • †Buchia trigonoides • †Bulbificopsis – type locality for genus • †Bulbificopsis garza – type locality for species • Bulimina • †Bulimina obtusa • land snail Bulimulus'' • †Bullamirifica • †Bullamirifica ainiktos • †Bullamirifica elegans • Bullaria • †Bullaria nortonensis • Bullina • †Bullina yoloensis – type locality for species • †Butticeras • †Butticeras studleyi – type locality for species ==C==

• †Califadesma • †Califadesma elaphium • †Californigonia – type locality for genus • †Californigonia plumasensis – type locality for species. Formerly classified as Trigonia plumasensis. • †Californites – type locality for genus • †Californites careyi – type locality for species • †Californites merriami – type locality for species • †Californosaurus'' • Callianassa – tentative report • †Calliconites • †Calliconites drakei – type locality for species • †Calliomphalus – tentative report • Callista – tentative report • †Callista pseudoplana – or unidentified related form • †Callista subtrigona • †Callistalox • †Callistalox fragilis • †Calva • †Calva crassa • †Calva elderi • †Calva nitida • †Calva peninsularis • †Calva spissa • †Calva taffi • †Calva varians • †Calycoceras'' • †Calycoceras naviculare • †Camptonectes • †Camptonectes curvatus – or unidentified comparable form • †Canadoceras • †Canadoceras celeste – type locality for species • †Canadoceras fraternum • †Canadoceras mysticum • †Canadoceras newberryanum • †Canadoceras subtilobatum – or unidentified related form • Cancellaria – tentative report • †Canelonus • †Canelonus conus • †Caneta • †Caneta hsui • †Canoptum • †Canoptum anulatum • †Canoptum poissoni • †Canoptum rugosum • Cantharus • †Cantharus occidentalis • †Canutus • †Canutus giganteus • †Canutus rockfishensis • cap sea snails Capulus'' – or unidentified comparable form • †Capulus silverthorni – type locality for species • Cardinia • †Cardinia gleimi – type locality for species • †Cardiomorpha – tentative report • †Cardiomorpha digglesi – type locality for species • Cardita • †Cardita jenkinsi – type locality for species • †Cassideus • †Cassideus yoloensis • †Cecrops • †Cecrops septemporata • †Cecrops septemporatus • †Celtites • †Celtites steindachneri • Cenodiscus • †Cenodiscus alievi • Cenosphaera • †Cenosphaera boria • †Ceriostella • †Ceriostella martini • Cerithidea • cerith sea snail Cerithium'' • †Cerithium alternata • †Cerithium totiumsanctorum – or unidentified comparable form • †Choristoceras • †Choristoceras klamathense – type locality for species • †Choristoceras marshi • †Christitys – type locality for genus • †Christitys delta – type locality for species • †Christitys martini – or unidentified comparable form • †Christitys medica – type locality for species • †Cidarina • †Cidarina beta – type locality for species • †Cidarina cretacea – type locality for species • sea urchin Cidaris'' • †Cidaris californicus • †Cidaris plumasensis • †Cidaris taylorensis • †Cladoceramus • †Cladoceramus undulatoplicatus • †Clinura • †Clinura anassa • †Clisocolus • †Clisocolus cordatus • †Clisocolus corrugatus • †Clisocolus dubius • †Collignoniceras'' • †Collignoniceras bakeri • †Collonia • †Collonia occidentalis – type locality for species • †Cophocara • †Cophocara stantoni • †Coralliochama • †Coralliochama orcutti • Corbicula • †Corbicula astartoides • Corbula • †Corbula cancellifera • †Corbula parilis • †Corbula pozo • †Corbula torta – or unidentified comparable form • †Corbula traski • †Corbula traskii • Cornutella • †Cosmonautilus • †Cosmonautilus dilleri • †Cosmonautilus hersheyi – type locality for species • †Cosmonautilus pacificus – type locality for species • †Cosmonautilus shastensis – type locality for species • †Costispiriferina • †Costispiriferina pittensis • †Courtilloticeras • †Courtilloticeras stevensi – type locality for species • Crassatella • †Crassatella conradiana • †Crassatella mercedensis – tentative report • †Crassatella saulae • †Crassatella triangulata • †Crassatella triangulatus • †Crassatellina • †Crassatellina saulae • †Crioceratites'' • †Crioceratites latus • †Crioceratites tehamaensis – or unidentified comparable form • †Crolanium • †Crolanium triquetrum • †Crucella • †Crucella linda • †Crucella magna • †Crucella messinae • †Crucella theokaftensis • Cucullaea • †Cucullaea alamoensis – type locality for species • †Cucullaea bowersiana • †Cucullaea gravida • †Cucullaea truncata • †Cucullaea youngi • †Cunningtoniceras • †Cunningtoniceras meridionale – or unidentified related form • †Cyclothyris • †Cyclothyris densleonis • Cylichna • †Cylichna andersoni • †Cylindroteuthis • †Cymatoceras'' • †Cymatoceras carlottense • †Cymatoceras hermosus – type locality for species • †Cymbophora • †Cymbophora asburnerii • †Cymbophora ashburnensis – or unidentified related form • †Cymbophora ashburnerii • †Cymbophora bella – or unidentified comparable form • †Cymbophora gabbiana • †Cymbophora popenoei • †Cymbophora stantoni • †Cymbophora tenuissima • †Cymbophora triangula • †Cymbophora triangulata • †Cymbospondylus'' • †Cymbospondylus petrinus • †Cymulopora – tentative report • †Cyprimeria • †Cyprimeria moorei • Cyrtocapsa – tentative report • †Cyrtocapsa kisoensis – or unidentified related form ==D==

• †Damesites • †Damesites damesi • †Damesites frazierense • †Damesites gardeni – or unidentified related form • †Damesites hetonaiensis • †Damesites richardsoni – type locality for species • †Damesites subsugatum • †Daonella'' – tentative report • †Daonella dubia • †Darvelus • †Darvelus pessagnoi – type locality for species • †Darvelus primus – type locality for species • Dentalina • †Dentalina legumen • †Dentalium • †Dentalium cooperi • †Dentalium nanaimoense • †Dentalium whiteavesi • †Desmoceras'' • †Desmoceras alamoense – or unidentified comparable form • †Desmoceras argonauticum – or unidentified comparable form • †Desmoceras dawsoni • †Desmoceras inane • †Desmoceras japonicum • †Desmoceras voyi • †Desmophyllites • †Desmophyllites diphylloides – type locality for species • †Deviatus • †Deviatus deweveri • †Deviatus hipposidericus • †Diacanthocapsa • †Dicerosaturnalis • †Dicerosaturnalis dicranacanthos • †Dicroa • †Dicroloma • †Dicroloma nodosa • †Dictyoconites • †Dictyoconites americanus – type locality for species • †Dictyomitra • †Dictyomitrella • †Dictyomitrella kamoensis • †Didymoceras'' • †Didymoceras hornbyense – or unidentified comparable form • †Didymoceras vancouverense – or unidentified comparable form • †Didymoceras vancouverensis • †Dieneria – type locality for genus • †Dieneria arthaberi – type locality for species • †Dieneroceras • †Dieneroceras dieneri – type locality for species • †Dieneroceras marcoui – type locality for species • †Dieneroceras spathi • †Dieneroceras subquadratum • †Dillerites – type locality for genus • †Dillerites shastensis – type locality for species • †Dimyodon • †Dimyodon storrsi – type locality for species • †Diozoptyxis • †Diozoptyxis ursana – type locality for species • Diplodonta • †Diplodonta davisi • †Diplomoceras • †Diplomoceras ellipticum • †Diplomoceras jimboi – type locality for species • †Diplomoceras mustangense – type locality for species • †Discohelix – tentative report • †Discohelix leana • †Discophyllites • †Discophyllites patens • †Discoproptychites • †Discoproptychites walcotti – type locality for species • †Discoscaphites'' • †Discotropites • †Discotropites davisi – type locality for species • †Discotropites formosus – type locality for species • †Discotropites laurae • †Discotropites lineatus • †Discotropites mojsvarensis • †Discotropites plinii • †Discotropites sandlingensis • †Discotropites sengeli • †Discotropites smithi • †Discotropites theron • †Distichophyllia • †Distichophyllia norica • †Douvilleiceras'' • †Douvilleiceras mammillatum – or unidentified comparable form • †Drepanochilus • †Drepanochilus transversus • †Drilluta – tentative report • †Droltus • †Dumitricaella – tentative report • †Dumitricaella cucurbitina – or unidentified related form • †Durania • †Durania californica – type locality for species ==E==

• †Echinocorys • †Echinocorys yoloensis – type locality for species • †Elimia • †Elimia veatchii • †Ellipsoscapha • †Ellipsoscapha nortonensis – or unidentified comparable form • †Ellipsoscapha skaios • †Emiluvia • †Emiluvia chica • †Emiluvia dollarbendensis • †Emiluvia fontana • †Emiluvia hopsoni • †Emiluvia lowercoonensis • †Emiluvia nana • †Emiluvia pessagnoi • †Emiluvia premyogii • , or the "saber-toothed herring" †Enchodus'' • †Endoptygma • †Endoptygma hermax – type locality for species • †Entobia • †Entolium • †Entolium equabile • †Entolium meeki • †Entolium pittensis – type locality for species • †Eocomoseris • †Eocomoseris ramosa • †Eocypraea • †Eocypraea louellae – type locality for species • †Eodanubites • †Eodanubites judae – type locality for species • †Eogaudryceras • †Eogaudryceras wintunius • †Eogunnarites • †Eogunnarites matsumotoi • †Eospongosaturninus • †Eospongosaturninus protoformis • †Eripachla • †Eripachla ponderosa • †Eripachya • †Eripachya ponderosa • †Eriphyla • †Eriphyla lapida • †Eriphyla lapidus • †Eriphyla umbonata • †Etea • †Etea occidentalis • †Eucalycoceras • †Eucalycoceras diabloense – type locality for species • †Euclastes'' • †Eucymatoceras • †Eucymatoceras plicatum • †Eucyrtidiellum • †Eucyrtidiellum ptyctum • †Eucyrtidiellum takemurai • †Eucyrtidiellum unumaense • †Eucyrtidium – tentative report • †Euidothyris • †Euidothyris lucerna – type locality for species • †Euomphaloceras • †Euomphaloceras septemseriatum • †Eupachydiscus • †Eupachydiscus arbucklensis – type locality for species • †Eupachydiscus haradai • †Eupachydiscus lamberti – or unidentified related form • †Eupachydiscus willgreeni – type locality for species • †Euspira • †Euspira compressa • †Euspira marianus • †Euspira popenoei • †Euspira shumardiana • †Eutrephoceras • †Eutrephoceras campbelli • †Exiteloceras'' • †Exiteloceras bennisoni – type locality for species • †Exiteloceras desertense – type locality for species • †Exiteloceras diabloense – tentative report • †Exiteloceras ortigalitoense – type locality for species • †Exiteloceras vancouverense • †Exogyra ==F==

• †Fagesia'' • †Fagesia catinus – type locality for species • †Fagesia klamathensis – type locality for species • Fissurella – tentative report • †Flabellina • †Flabellina pilulifera • †Flabellirhynchia • †Flabellirhynchia concinna – type locality for species • †Flabellirhynchia falconis – type locality for species • †Flabellum • †Flabellum fresnoense – type locality for species • †Flaventia • †Flaventia lens • †Foremanina • †Francisciconcha • †Francisciconcha maslennikovi • †Fresnosaurus – type locality for genus • †Fresnosaurus drescheri – type locality for species • Frondicularia • †Frondicularia undulosa – or unidentified comparable form ==G==

• †Gabbioceras • †Gabbioceras angulatum • †Garzasia • †Garzasia diabla • †Garzasia intermedia – or unidentified comparable form • Gastrochaena – tentative report • †Gaudryceras'' • †Gaudryceras alamedense • †Gaudryceras aureum – type locality for species • †Gaudryceras cinctum – or unidentified related form • †Gaudryceras debnabebse – or unidentified comparable form • †Gaudryceras denmanense – or unidentified comparable form • †Gaudryceras kayei – type locality for species • †Gaudryceras tenuiliratum – tentative report • †Gaudryceras texanum – type locality for species • †Gervillia • †Gervillia shastensis • Glans – tentative report • †Glans veneriformis • †Glauconia • †Globigerinelloides • †Globirhynchia • †Globirhynchia gnathophora – type locality for species • †Globirhynchia oblatopinguis – type locality for species • †Globirhynchia rhacta – type locality for species • †Globirhynchia schucherti – type locality for species • Glossus • †Glossus delta • , or bittersweet clam Glycymeris'' • †Glycymeris anae • †Glycymeris apletos • †Glycymeris banosensis – type locality for species • †Glycymeris pacifica – or unidentified comparable form • †Glycymeris pacificus • †Glycymeris shastensis – type locality for species • †Glycymeris suciensis • †Glycymeris veatchii • †Glycymeris yoloensis • †Glyptoxoceras • †Glyptoxoceras largesulcatum – or unidentified comparable form • †Glyptoxoceras subcompressum – or unidentified comparable form • †Gnathorhynchia • †Gnathorhynchia perplicata – type locality for species • †Gnomohalorites • †Gnomohalorites americanus • Gongylothorax • †Gongylothorax oblongus – or unidentified related form • †Goniojuvavites • †Goniojuvavites kellyi – type locality for species • †Gonionotites • †Gonionotites northi – type locality for species • †Gorgansium • †Gorgansium pulchrum • †Goricanites – type locality for genus • †Goricanites noblei – type locality for species • †Grallator'' • †Grammatodon • †Grammatodon vancouverensis • †Gryphaea • †Gryponautilus • †Gryponautilus cooperi – type locality for species • †Guexella • †Guineana • †Guineana alta • †Guodunites • †Guodunites hooveri – type locality for species • †Gymnotropites • †Gymnotropites americanus – type locality for species • †Gymnotropites laevis – type locality for species • †Gymnotropites rotundus – type locality for species • Gyrodes • †Gyrodes allisoni • †Gyrodes californicus • †Gyrodes canadensis • †Gyrodes conradiana • †Gyrodes dowelli • †Gyrodes expansa • †Gyrodes expansus • †Gyrodes greeni – type locality for species • †Gyrodes pacificum • †Gyrodes pacificus – or unidentified comparable form • †Gyrodes quercus • Gyroidina • †Gyroidina depressa ==H==

• , or abalone Haliotis'' • †Halobia • †Halobia austriaca • †Halobia cordillerana • †Halobia gigantea • †Halobia ornatissima • †Halobia rugosa • †Halobia superba • †Hauericeras • †Hauericeras angustum • †Hauericeras churchi – type locality for species • †Hauericeras mickeyi – type locality for species • †Hauerites • †Hauerites lawsoni – type locality for species • †Haydenia • †Haydenia impressa • †Hecticoceras • †Hedenstroemia'' • †Hedenstroemia kossmati • †Helena • †Helena exquisita • †Helicaulax • †Helicaulax popenoei – type locality for species • Hemiaster • †Hemiaster californicus • †Hemicidaris • †Hemicidaris intumescens • †Hemicryptocapsa • †Hemicryptocapsa ruesti – or unidentified related form • genus Heptranchias Heptranchias • †Hertleinites • †Hertleinites aguila • †Hertleinites pecki • †Heteroderma • †Hexasaturnalis • †Hexasaturnalis hexagonus • †Hexasphaera • †Hexasphaera baumgartneri • †Higumastra • †Higumastra boucoti • †Higumastra devilsgapensis • †Higumastra dumitricai • †Higumastra imbricata • †Higumastra inflata – or unidentified related form • †Higumastra transversa • †Hilarisirex • , or hoof sea snail Hipponix'' • †Hipponix dichotomus • †Hiscocapsa • †Hiscocapsa acuta • †Hiscocapsa japonica – or unidentified comparable form • †Hiscocapsa robusta • †Hokkaidoconcha • †Hokkaidoconcha bilirata – type locality for species • †Hokkaidoconcha morenoensis – type locality for species • †Hokkaidoconcha occidentalis • †Hokkaidoconcha tehamaensis – type locality for species • †Holcodiscoides • †Holcodiscoides gorrilli – type locality for species • †Holcophylloceras – tentative report • †Hollisites • †Hollisites inflatus • †Hollisites lucasi • †Holocryptocanium • †Holocryptocanium astiensis • †Holocryptocanium barbui • †Holocryptocanium geysersensis • †Holocryptocanium tuberculatum • †Homerites • †Homerites semiglobosus • †Homoeoparonaella • †Homoeoparonaella barbata • †Homoeoparonaella elegans • †Homoeoparonaella gigantea • †Homoeoparonaella glinesi • †Homoeoparonaella radians • †Homoeoparonaella scurrae • †Homolsomites • †Homolsomites mutabilis • †Hoplocrioceras • †Hoplocrioceras ducanense • †Hoplocrioceras duncanense • †Hoplocrioceras remondi • †Hoplotropites • †Hoplotropites jokelyi • †Hormathospongia – type locality for genus • †Hormathospongia dictyota – type locality for species • †Hsuum • †Hsuum baldfacense • †Hsuum brevicostatum • †Hsuum maxwelli • †Hsuum mclaughlini • †Hsuum naturale • †Hsuum obispoensis • †Hsuum rutogense • †Hsuum santamariaense • †Hsuum speciosum • †Hybodus'' • †Hybodus shastensis – type locality for species • †Hydrotherosaurus – type locality for genus • †Hydrotherosaurus alexandrae – type locality for species • †Hyphantoceras • †Hyphantoceras ceratopse • †Hyphantoceras venustum – or unidentified comparable form • †Hypophylloceras • †Hypophylloceras onoense – or unidentified related form ==I==

• †Icantia • †Ichthyornis'' • †Ichthyosaurus • †Ichthyosaurus californicus – type locality for species • †Ichthyosaurus franciscanus – type locality for species • †Igonoia • †Igonoia shastana • †Indonesites • †Indonesites sphaericus • with a human indicating its size †Inoceramus'' • †Inoceramus aduncas • †Inoceramus aduncus • †Inoceramus amakusensis – or unidentified comparable form • †Inoceramus angulatus – or unidentified comparable form • †Inoceramus balticus • †Inoceramus chicoensis – type locality for species • †Inoceramus cordiformis – or unidentified comparable form • †Inoceramus cymbaeformis – or unidentified related form • †Inoceramus digitatus – or unidentified related form • †Inoceramus ezoensis – or unidentified comparable form • †Inoceramus glennensis • †Inoceramus goldfussi – or unidentified comparable form • †Inoceramus gradilis • †Inoceramus incertus – or unidentified comparable form • †Inoceramus jacksonensis – type locality for species • †Inoceramus japonicus – or unidentified comparable form • †Inoceramus klamathensis • †Inoceramus naumanni • †Inoceramus pembertoni – or unidentified related form • †Inoceramus regularis – or unidentified related form • †Inoceramus shikotanensis – or unidentified comparable form • †Inoceramus stanislausensis • †Inoceramus steinmanni – or unidentified comparable form • †Inoceramus subundantus • †Inoceramus subundatus • †Inoceramus teshioensis – or unidentified comparable form • †Inoceramus turgidus – type locality for species • †Inoceramus vancouverensis • †Inoceramus whitneyi – or unidentified related form • †Inoperna • †Inoperna bellarugosa • †Inyoceras • †Inyoceras bittneri – type locality for species • †Inyoceras multicameratus – type locality for species • †Inyoites – type locality for genus • †Inyoites oweni – type locality for species • Isocrinus • †Isocrinus californicus • Isognomon'' • †Isognomon – type locality for species – informal ==J==

• †Jeanbesseiceras – tentative report • †Jeanbesseiceras jacksoni • †Joaquinites – type locality for genus • †Joaquinites fascicostatum – type locality for species • †Jovites • †Jovites pacificus – type locality for species • Jupiteria • †Juvavites • †Juvavites knowltoni • †Juvavites subinterruptus • †Juvenites • †Juvenites dieneri – type locality for species ==K==

• †Kallirhynchia'' • †Kallirhynchia phylarchus – type locality for species • †Kallirhynchia valliculae – type locality for species • †Katroma • †Katroma neagui – or unidentified related form • †Keyserlingites • †Keyserlingites pacificus – type locality for species • †Keyserlingites subrobustus • †Kilianella • †Kilianella crassiplicata • †Kilinora • †Kilinora catenarum • †Kilinora spiralis • †Klamathites • †Klamathites kellyi • †Klamathites schucherti – type locality for species • †Kossmaticeras'' • †Kossmaticeras japonicum – or unidentified related form • †Kozurium • †Kozurium corningensis • †Kozurium zingulai • †Kuhnastraea • †Kuhnastraea decussata ==L==

• †Laballa • †Laballa suessi – or unidentified comparable form • †Lacunaria • †Lacunaria striata • †Lampasa • †Lampasa blomei • †Lanceolites – type locality for genus • †Lanceolites bicarinatus • †Lanceolites compactus • †Lanubus • Laternula – tentative report • †Laternula alisoensis • †Latidorsella • †Latidorsella barryae – type locality for species • †Latimaeandra – report made of unidentified related form or using admittedly obsolete nomenclature • †Latimaeandra eucystis • †Leconteia – type locality for genus • †Leconteia californica – type locality for species • †Leconteiceras • †Leconteiceras occidentale – type locality for species • †Leconteites • †Leconteites lecontei – tentative report • Leda – tentative report • †Leda translucidus – tentative report • †Legumen • †Legumen ooides • †Leptosolen • †Leugeo • †Leugeo ordinarius • †Leugeo parvispinata • †Levileugeo • Lima • †Lima – type locality for species A – informal • †Lima beta • †Lima costata • †Lima kimballi – type locality for species • †Lima terqueni • Limopsis • †Limopsis silveradoensis • †Linaresia • †Linearis • †Linearis multicostata – or unidentified comparable form • †Lingula • †Lipmanium – tentative report • †Lipmanium caseyi • †Lisopithia • †Lisopithia ana • †Lispodesthes • †Lispodesthes rotundatus • †Lispodesthes rotundus • †Lithiotis • †Lithiotis problematica • †Lithomphalus • †Lithomphalus enderlini • Lithophaga • †Loboidothyris • †Loboidothyris meeki – type locality for species • †Loboidothyris mormonensis – type locality for species • †Longoconcha – tentative report • Lopha'' • Loripes – tentative report • †Loripes dubia • †Loxo • †Loxo decore • †Lucina • †Lyriochlamys • †Lyriochlamys traskii • †Lysis • †Lysis californica • †Lysis duplicosta • †Lysis suciensis – or unidentified comparable form • †Lytoceras'' • †Lytoceras aulaeum • †Lytoceras batesi • †Lytoceras saturnale • †Lytoceras traski – or unidentified comparable form • †Lytoceras whitneyi ==M==

• Macrocallista • †Macrocallista cordata – or unidentified related form • †Macrocephalites'' • †Madrasites • †Madrasites voyanum – type locality for species • †Mammites – tentative report • †Mantelliceras • †Mantelliceras lecontei – or unidentified comparable form • Margarella • †Margarella crenulata • †Margariella – tentative report • †Margaritella • †Margaritella globosa • Margarites • †Margarites inornatus • †Margarites ornatissima • †Margarites senilis • †Margarites septentrionalis – type locality for species • †Margaritropites • †Margaritropites johnsoni – type locality for species • †Margaritropites kokeni – type locality for species • †Marginotruncana • †Marginotruncana marginata • †Marginotruncana renzi • Marginulina • †Marginulina elongata • †Mariella'' • †Mariella bergeri • †Mariella fricki • Martesia • †Martesia clausa • †Mataxa • †Mataxa arida – type locality for species • †Mediaster • †Mediaster hayi – type locality for species • †Meekia • †Meekia bella • †Meekia daileyi • †Meekia iberica • †Meekia lirata – tentative report • †Meekia louella • †Meekia mygale • †Meekia radiata • †Meekia sella • †Meekia takeoana – tentative report • †Meekoceras • †Meekoceras gracilitatis • †Meekoceras newberryi • †Meekoceras strongi • †Melchiorites • †Melchiorites shastensis • †Menuites'' • †Menuites arrialoorensis – or unidentified related form • †Menuites siskiyouensis • †Merriamia • †Merriamia zitteli • †Mesopuzosia • †Mesopuzosia colusaense • †Mesopuzosia intermedia – or unidentified comparable form • †Mesopuzosia pacifica – or unidentified comparable form • †Metacerithium – tentative report • †Metaplacenticeras • †Metaplacenticeras californicum • †Metaplacenticeras pacificum • †Metaplacenticeras transitionale • †Metasibirites • †Metasibirites brockensis – type locality for species • †Metasibirites coei – type locality for species • †Metasibirites frechi – type locality for species • †Metasibirites gracilis – type locality for species • †Metasibirites modestus – type locality for species • †Metasibirites mojsvarensis – type locality for species • †Metasibirites pusillus – type locality for species • †Metasibirites pygmaeus – type locality for species • †Metasibirites shastensis – type locality for species • †Metatirolites • †Metatirolites foliaceus • †Metatirolites quadrangulus • †Metatirolites subpygmaeus • †Microsciadiocapsa • †Microsciadiocapsa sutterensis • †Microtropites • †Microtropites tubercularis • †Millerocaulis • †Millerocaulis embreei – type locality for species • †Minasteria – report made of unidentified related form or using admittedly obsolete nomenclature • †Minasteria shastensis • †Minocapsa • †Minocapsa aitai • †Minocapsa tansinhoki • †Minytropis • †Minytropis melilota • †Mirifusus • †Mirifusus baileyi • †Mirifusus chenodes – or unidentified related form • †Mirifusus fragilis • †Mirifusus guadalupensis • †Mirifusus mediodilatatus • † Mita – tentative report • † Mita • †Mita magnifica • †Modiolus • †Modiolus cylindricus • †Modiolus sikiyouensis • †Modiolus siskiyouensis • †Mojsvaroceras • †Mojsvaroceras turneri – type locality for species • †Monotis • †Monotis subcircularis • †Morenosaurus – type locality for genus • †Morenosaurus stocki – type locality for species • †Mortoniceras'' • †Mortoniceras chicoense • †Mortoniceras gainesana • †Mortoniceras inflata • †Mortoniceras kiliani • †Mortoniceras tehamaensis • †Msopuzosia • †Msopuzosia densicostata – or unidentified comparable form • †Murphitys – type locality for genus • †Murphitys corona – type locality for species • †Murphitys madonna – type locality for species • †Murphitys michaeli – type locality for species • Musculus – or unidentified related form • †Myoconcha • †Myoconcha nana • †Myophorella'' • †Myophorella argo • †Myophorella dawsoni – or unidentified related form • †Myophorella yellowstonensis • †Myophoria • †Myophoria brockensis – type locality for species • Myrtea • †Myrtea gabbi – tentative report • †Mytiloides • †Mytiloides labiatus • †Mytiloides mytiloides • †Mytiloides opalensis • †Mytiloides stantoni – or unidentified comparable form • mussels †Mytilus'' • †Mytilus pauperculus – or unidentified comparable form • †Mytilus quadratus • †Mytilus ursensis – type locality for species ==N==

• †Nanonavis • †Nanonavis breweriana • Napora • †Napora bearensis – or unidentified comparable form • †Napora bukryi • †Napora collieri • †Napora dumitricai • †Napora durhami • †Napora elkcampensis • †Napora espinosa • †Napora latissima – or unidentified related form • †Napora lomoalta • †Napora nipponica • †Napora pacifica • †Napora praespinifera • †Napora pyramidalis • †Napora redonda • †Napora saginata – or unidentified related form • †Napora sixi • †Napora spinifera • Natica • †Natica allisoni • †Natica conradiana • †Navahopus • (right) and Thalattosaurus †Nectosaurus'' • †Neithea • †Neithea grandicosta • †Nelltia • †Nelltia roddana – tentative report • †Nelltia salsa – type locality for species • †Nemodon • †Neocardioceras – tentative report • †Neohibolites • †Neohibolites fontinalis • †Neoparonaella • †Neoparonaella delicata • †Neophylloceras • †Neophylloceras hetonaiense • †Neophylloceras ramosum • †Neophylloceras vaculae • †Neopopanoceras • †Neopopanoceras haugi – type locality for species • †Neopuzosia • †Neopuzosia ishikawai • †Nerinea'' • †Nerinea stewarti – type locality for species • †Nerinella • †Nerinella santana – type locality for species • Nerita • †Nerita orovillensis – tentative report • Nodosarella • Nodosaria • †Nodosaria monile • †Nodosaria pomuligera • †Nodosaria spinifera • †Nolita • †Nolita ramosa • †Nonactaeonina • †Nonactaeonina obesa • †Nonactaeonina tensa – or unidentified comparable form • †Nostoceras'' • †Nostoceras excelsus – type locality for species • †Nostoceras splendidum • †Notidanodon • †Notidanodon lanceolatus • †Notodonax • †Notodonax bolsae • †Novitripus • †Novitripus placitus • †Novitripus varius • †Novixitus • †Novixitus jurassicus • †Novixitus mclaughlini • †Nowakites • †Nowakites dobbinsi – type locality for species • †Nowakites klamathonis – type locality for species • †Nowakites puertoensis – type locality for species • †Nowakites rumseyensis – type locality for species • Nucinella • Nucleolites – report made of unidentified related form or using admittedly obsolete nomenclature • †Nucleolites mercedensis • Nucula'' • †Nucula gabbi • †Nucula storrsi • Nuculana • †Nuculana grandensis – or unidentified related form • †Nuculana translucida • †Nudivagus – tentative report • †Nudivagus califus – type locality for species ==O==

• †Obesacapsula • †Obesacapsula cetia • †Obesacapsula morroensis • †Obesacapsula rotunda • †Obnixia – type locality for genus • †Obnixia thaynesiana • †Octopodichnus • †Olanda • †Olanda olorina • †Omphaloptycha • †Omphaloptycha obesa – type locality for species • †Omphaloptycha shastensis – type locality for species • Opalia • †Ophiceras • †Ophiceras involutum • †Opis • †Opis anae – type locality for species • †Opis californica – type locality for species • †Opis holzana • †Opis pacifica • †Opis popenoei – type locality for species • †Opis rosarioensis • †Opis triangulata – type locality for species • †Opis vancouverensis • †Orbiculiforma • †Orbiculiforma maxima • †Orbiculiforma multangula • †Orbiculiforma nevadaensis • †Orbiculiforma railensis • †Orbiculiformella • †Orbiculiformella teres • †Ornithella • †Ornithella curticensis – type locality for species • †Ornithella gemina – type locality for species • †Ornithella syringothyrides – type locality for species • †Orthoceras • †Orthoceras shastense – type locality for species • †Orthotrigonia • Ostrea • †Ostrea crescentica • †Owenites • †Owenites carpenteri • †Owenites koeneni – type locality for species • †Oxybeloceras • †Oxybeloceras petrolense • †Oxybeloceras taffi – type locality for species • †Oxyeurax • †Oxyeurax trapezoidalis • †Oxynautilus • †Oxynautilus acutus • †Oxytoma • †Oxytropidoceras • †Oxytropidoceras peruvianum ==P==

• †Pachecocrinus • †Pachydesmoceras • †Pachydesmoceras colusaense • †Pachydesmoceras pachydiscoide – type locality for species • †Pachydiscus'' • †Pachydiscus ashlandicus – or unidentified related form • †Pachydiscus averilli – type locality for species • †Pachydiscus binodatus – or unidentified comparable form • †Pachydiscus buckhami • †Pachydiscus catarinae – or unidentified related form • †Pachydiscus coalingense • †Pachydiscus egertoni – or unidentified comparable form • †Pachydiscus henleyensis • †Pachydiscus japonicus – or unidentified comparable form • †Pachydiscus neevesi – or unidentified comparable form • †Pachydiscus ootacodensis • †Pachydiscus subcompressus • †Pachyoncus • †Pachyoncus kamiasoensis • †Paladmete – tentative report • †Palaeastraea – report made of unidentified related form or using admittedly obsolete nomenclature • †Palaeastraea grandissima • †Palaeobates • †Palaeobates shastensis – type locality for species • †Palaeocypraea • †Palaeocypraea fontana – type locality for species • †Palaeocypraea wilfredi – type locality for species • †Palaeomoera • †Palaeomoera dyskritos • †Paleopsephaea • †Paleopsephaea sacramentica • †Paleotractus • †Paleotractus crassus • †Palinandromeda • †Palinandromeda fimbria • †Palinandromeda podbielensis • Panopea • †Panopea californica – or unidentified related form • †Pantanellium • †Pantanellium buntonense – or unidentified comparable form • †Pantanellium darlingtonense • †Pantanellium deflectum • †Pantanellium fishcreekensis • †Pantanellium foveatum • †Pantanellium josephinense • †Pantanellium meraceibaense • †Pantanellium rarum • †Pantanellium riedeli • †Pantanellium squinaboli • †Pantanellium ultrasincerum • †Paraganides – type locality for genus • †Paraganides californicus – type locality for species • †Parahauerites • †Parahauerites ashleyi – type locality for species • †Parahoplites • †Parahoplites sjogreni – or unidentified related form • †Parahsuum • †Parahsuum izeense • †Parahsuum mostleri • †Parahsuum ovale • †Parahsuum publicum • †Parahsuum simplum • †Parahsuum stanleyense • †Parahsuum transiens – or unidentified comparable form • †Parallelodon • †Parallelodon brewerianus • †Parallelodon vancouverensis • †Paranannites • †Paranannites oviformis – type locality for species • †Parapachydiscus • †Parapachydiscus bidwelli – type locality for species • †Parapachydiscus catarinae • †Parapachydiscus cortinaensis – type locality for species • †Parapachydiscus panochensis – type locality for species • †Parapachydiscus peninsularis – or unidentified related form • †Parapachydiscus stanislausensis – type locality for species • with a human indicating its size †Parapuzosia'' • †Parapuzosia arenaica – type locality for species • †Parapuzosia giganteum – type locality for species • †Parapuzosia hearni – type locality for species • †Parapuzosia hindsi – type locality for species • †Parapuzosia klamathonrae – type locality for species • †Parapuzosia waringi • †Paratropites • †Paratropites colei • †Paratropites shastensis • †Parisculites • †Parisculites obolinus • †Paronaella • †Paronaella aranae • †Paronaella bandyi • †Paronaella broennimanni – or unidentified related form • †Paronaella cleopatraensis • †Paronaella coalescenda • †Paronaella egregia • †Paronaella inornata • †Paronaella nipomoensis • †Paronaella obesa • †Paronaella panda • †Paronaella solanoensis – or unidentified comparable form • †Partschiceras • †Partschiceras grantzi – or unidentified comparable form • †Parussuria • †Parussuria compressa – type locality for species • Parvamussium • †Parvicingula • †Parvicingula alamoensis • †Parvicingula blowi • †Parvicingula bluefordae • †Parvicingula boesi • †Parvicingula broqueta • †Parvicingula citae • †Parvicingula colemani • †Parvicingula corona • †Parvicingula cuyamaensis • †Parvicingula deadhorsensis • †Parvicingula dhimenaensis – or unidentified related form • †Parvicingula excelsa • †Parvicingula gorda • †Parvicingula gracila • †Parvicingula jonesi • †Parvicingula khabakovi – or unidentified comparable form • †Parvicingula obstinata • †Parvicingula rothwelli • †Parvicingula sanfilippoae • †Parvicingula satura • †Parvicingula thomesensis • †Parvicingula turrita • †Parvicingula whalenae • †Parvicingula yehae • †Parvivacca • †Parvivacca coraforma • †Parvivacca immodica • †Parvivacca marina • †Parvivacca robusta • †Parvivacca simplex • †Parvivacca varica • †Paskentana • †Paskentana berryessaensis – type locality for species • †Paskentana globosa – type locality for species • †Paskentana paskentaensis • Patella – report made of unidentified related form or using admittedly obsolete nomenclature • †Patella sheehani – type locality for species • †Patella stuarti – type locality for species • †Patulibracchium • †Patulibracchium grapevinensis • †Patulibracchium henlei – or unidentified related form • †Paxitropis • †Paxitropis dicriota • scallops †Pecten'' • †Pecten cowperi • †Pecten deformis – type locality for species • †Pedalion • †Pegaster – type locality for genus • †Pegaster stichos – type locality for species • †Pentacrinus • †Pentacrinus asteriscus – tentative report • †Pentzia • †Pentzia hilgardi • Periploma • †Periploma subgracile – or unidentified related form • †Periplomya – tentative report • †Perispyridium • †Perispyridium alinchakense – or unidentified related form • †Perispyridium bacatum • †Perispyridium dangerpointense • †Perispyridium gujohachimanense • †Perispyridium neotamanense • †Perispyridium ordinarium • †Perissitys • †Perissitys brevirostris • †Perissitys colocara – type locality for species • †Perissitys cretacea • †Perissitys elaphia – type locality for species • †Perissitys pacifica – type locality for species • †Perissitys stantoni • †Peroniceras'' • †Peroniceras leei – or unidentified related form • †Peroniceras shastensis • †Pervinquieria • †Pervinquieria furberi – type locality for species • †Pervinquieria gainesana – type locality for species • †Petasiforma • †Petasiforma foremanae • †Petasiforma inusitata • Phanerolepida • †Phanerolepida onoensis – type locality for species • †Phantum • †Phantum insperatum – or unidentified comparable form • Pharella • †Pharella alta • †Phelopteria • †Phillippiella • Pholadomya • †Pholadomya diegoensis – or unidentified comparable form • †Pholadomya subelongata • †Phylloceras'' • †Phylloceras gargantuum – type locality for species • †Phylloceras pachecoense – type locality for species • †Phylloceras velledae • †Phyllopachyceras • †Phyllopachyceras aldersona • †Piarorhynchia • †Piarorhynchia howardi – type locality for species • †Piarorhynchia winnemae – type locality for species • †Piestochilus – tentative report • †Pinacoceras • †Pinacoceras rex • †Pinna • †Pinna calamitoides • †Pinna expansa – or unidentified comparable form • †Pityostrobus • †Pityostrobus calforniensis – type locality for species • †Plesiotylosaurus • †Plesiotylosaurus crassidens • †Pleuromya • †Pleurotropites • †Pleurotropites gabbi – type locality for species • †Pleurotropites gracilis – type locality for species • Plicatula • †Plicatula perimbricata • †Plicatula variata • †Plotosaurus'' • †Plotosaurus bennisoni • †Plotosaurus tuckeri • †Podobursa • †Podobursa basilica • †Podobursa helvetica • †Podobursa lanza • †Podobursa rosea • †Podobursa spinellifera • †Podobursa spinosa • †Podobursa tamanensis • †Podobursa triacantha • †Podocapsa • †Podocapsa amphitreptera • Polinices • †Polinices mercedensis – type locality for species • †Polinices shumardianus – tentative report • †Polycyclus • †Polycyclus henseli • †Polyptychites • †Polyptychites trichotomus • †Polyptychoceras'' • †Polyptychoceras obstrictum – or unidentified comparable form • †Posidonia • †Posidonia alpina • †Posidonia jacksoni – type locality for species • †Posidonia madisonensis – type locality for species • †Potamides – tentative report • †Potamides diadema • †Potamides grovesi – type locality for species • †Praeconocaryomma • †Praeconocaryomma decora – or unidentified comparable form • †Praeconocaryomma fasciata – tentative report • †Praeconocaryomma immodica • †Praeconocaryomma magnimamma – or unidentified comparable form • †Praeconocaryomma media – or unidentified comparable form • †Praeconocaryomma parvimamma – or unidentified comparable form • †Praeconocaryomma prisca • †Praeconocaryomma uhlensis • †Praeconocaryomma whiteavesi – or unidentified comparable form • †Praeconosphaera • †Praeconosphaera spinosa • †Praeparvicingula • †Praeparvicingula decora • †Praeparvicingula discors – or unidentified related form • †Praeparvicingula gemmata • †Praeparvicingula holdsworthi • †Praeparvicingula hurdygurdyensis • †Praeparvicingula nebulosa • †Praeparvicingula packsaddlensis • †Praeparvicingula rotunda • †Praeparvicingula saltata • †Praeparvicingula sencilla • †Praeparvicingula siskiyouensis • †Praeparvicingula turpicula • †Praewilliriedellum • †Praewilliriedellum cephalospinosum • †Preflorianites • †Preflorianites strongi – type locality for species • †Preflorianites toulai • †Prionocycloceras • †Prionocycloceras californicum • †Prionocycloceras crenulatum • †Prionolobus • †Prionolobus waageni – type locality for species • †Prionotropis • †Prionotropis casperi • †Prionotropis hiltensis – type locality for species • †Priscoficus – tentative report • †Prisconatica • †Prisconatica hesperia • †Proarcestes • †Proarcestes carpenteri – type locality for species • †Proarcestes pacificus • †Proarcestes shastensis – type locality for species • †Proarcestes traski – type locality for species • †Proarcestes whitneyi • †Proarcestes winnemae – type locality for species • †Proclydonautilus • †Proclydonautilus hessi – type locality for species • †Proclydonautilus spirolobus • †Proclydonautilus squawensis – type locality for species • †Proclydonautilus stantoni – type locality for species • †Proclydonautilus triadicus • †Proclydonautilus ursensis – type locality for species • †Prognathodon'' • †Prognathodon waiparaensis – or unidentified comparable form • †Projuvavites • †Projuvavites brockensis – type locality for species • †Projuvavites strongi – type locality for species • Propeamussium • †Prosphingitoides • †Prosphingitoides austini – type locality for species • †Protexanites • †Protexanites thompsoni • †Protocardia • †Protocardia remondianum • †Protocardia translucidum • †Protovallupus • †Protovallupus tetlamaensis • †Protrachyceras'' • †Protrachyceras storrsi – type locality for species • †Protunuma • †Protunuma japonicus • †Protunuma multicostatus – or unidentified related form • †Pseudacrochordiceras • †Pseudacrochordiceras inyoense – type locality for species • †Pseudanchura • †Pseudanchura biangulata • †Pseudhelicoceras • †Pseudhelicoceras petersoni – type locality for species • †Pseudocrucella • †Pseudocrucella ehrenbergi • †Pseudocymia – type locality for genus • †Pseudocymia aitha – type locality for species • †Pseudocymia aurora – type locality for species • †Pseudocymia cahalli – type locality for species • †Pseudodiadema • †Pseudodiadema emersoni • †Pseudodictyomitra • †Pseudodictyomitra lodogaensis • †Pseudodictyomitra pentacolaensis • †Pseudodictyomitra pseudomacrocephala • †Pseudodictyomitra vestalensis • †Pseudoeucyrtis • †Pseudoeucyrtis firmus • †Pseudoeucyrtis hannai – or unidentified comparable form • †Pseudoeucyrtis paskentaensis • †Pseudogaleodea • †Pseudoheliodiscus • sea snail †Pseudomelania'' • †Pseudomelania colusaensis – type locality for species • †Pseudoperna • †Pseudoperna toxidonta • †Pseudophyllites • †Pseudoptera – tentative report • †Pseudoristola • †Pseudoristola clava • †Pseudoristola nova • †Pseudosageceras • †Pseudosageceras multilobatum • †Pseudothurmannia – tentative report • †Pseudothurmannia jupiter • †Pseudothurmannia russelli • †Pseudoxybeloceras • †Pseudoxybeloceras lineatum – or unidentified comparable form • †Pteraichnus • †Pteroluter • †Pteroluter othnius – type locality for species • †Pterotrigonia'' • †Pterotrigonia evansana • †Pterotrigonia klamathonia • †Pterotrigonia oregana – or unidentified comparable form • †Ptilorhynchia – type locality for genus • †Ptilorhynchia plumasensis – type locality for species • †Ptiloteuthis – type locality for genus • †Ptiloteuthis foliatus – type locality for species • †Ptychoceras – type locality for genus • †Ptychoceras laeve – type locality for species • †Ptyctothyris • †Ptyctothyris hardgravensis – type locality for species • †Ptyctothyris phlegethontis – type locality for species • †Pugnellus • †Pugnellus hammulus – or unidentified related form • †Pugnellus hamulus • †Pugnellus manubriatus • †Puzosia • †Puzosia hannai – type locality for species • †Puzosia puma • †Puzosia sullivanae • Pycnodonte'' • †Pyktes • †Pyktes hamulus • †Pyramispongia • †Pyramispongia glascockensis • †Pyropsis ==Q==

• Quadrans – tentative report • †Quinquecapsularia • †Quinquecapsularia spinosa ==R==

• †Radioceras • †Radioceras evolvens • †Remondia • †Remondia oregonensis – type locality for species • †Reptolunulites • Retusa • †Rhabdoceras • †Rhabdoceras suessi • †Rhactorhynchia • †Rhactorhynchia trigona – type locality for species • †Rhaetina – tentative report • †Rhaetina pyriformis • †Rhectomax • †Rhectomax undulatus • †Rhectomyax • †Rhectomyax undulatus • †Rhynchonella'' • †Rhynchonella richardsoni – type locality for species • †Rhynchonella varians – or unidentified comparable form • †Riedelius • †Ristola • †Ristola altissima • †Ristola bala • †Ristola procera • †Ristola turpicula • Robulus • †Robulus inornatus • Rogerella • †Romaniceras • †Romaniceras deverioide ==S==

• †Sagenites • †Sagenites dickersoni – type locality for species • †Saghalinites • †Sandlingites • †Sandlingites andersoni – type locality for species • †Sandlingites oribasus • †Sarasinella • †Sarasinella angulata • †Saturniforma • †Saturniforma peregrina • †Scalarites • †Scapanorhynchus'' • Scaphander • †Scaphander costatus • †Scaphites • †Scaphites hippocrepis – or unidentified related form • †Scaphites inermis – or unidentified related form • †Scaphites pittensis – type locality for species • †Scaphotrigonia • †Scaphotrigonia naviformis • †Sciponoceras • †Sciponoceras gracile – type locality for species • Scobinella • †Scobinella dilleri • †Semihsuum • †Semihsuum biscuithillense • †Semihsuum brokencotense • †Semihsuum inexploratum • †Semihsuum sourdoughense • †Senis • Septifer • †Sequoia • †Sequoia reichenbachi • Serpula • †Shastasaurus'' • †Shastasaurus alexandrae • †Shastasaurus pacificus • †Shasticrioceras • †Shasticrioceras whitneyi – or unidentified related form • †Shastites • †Shastites compactus – type locality for species • †Shastites compressus – type locality for species • †Shastites whitneyi – type locality for species • †Shastoceras • †Silberlingia • †Silberlingia sanctaeanae • †Simbirskites • †Simbirskites broadi • †Simbirskites lecontei • Siphonalia • †Siphonalia dubius • †Sirenites • †Sirenites lawsoni – type locality for species • †Skolithos • Solariella • †Solariella occidentalis • †Solariella stewarti • Solemya – tentative report • Solen • †Solen cuneatus – or unidentified comparable form • †Solenoceras • †Spiriferina – report made of unidentified related form or using admittedly obsolete nomenclature • †Spiriferina coreyi – type locality for species • †Spirigera – report made of unidentified related form or using admittedly obsolete nomenclature • †Spirigera milesi – type locality for species • †Spirogmoceras • †Spirogmoceras shastense – type locality for species • †Spondylospira • †Spondylospira lewesensis • †Spondylospira parmata • Spondylus • †Spondylus subnodosus • †Spongiomorpha • †Spongiomorpha tenuis • †Spongocapsula • †Spongocapsula dumitricai • †Spongocapsula hooveri • †Spongocapsula palmerae • †Spongocapsula zamoraensis • †Spongosaturninus • †Spongosaturninus bispinus • Squalicorax'' • †Staurolonche • Stichocapsa • †Stichocapsa convexa • †Stichocapsa japonica • Stichomitra – tentative report • †Stichomitra takanoensis • †Stoliczkaia • †Stoliczkaia praecursor – type locality for species • †Stomechinus • †Stomechinus hyatti • †Striatojaponocapsa • †Striatojaponocapsa conexa • †Striatojaponocapsa plicarum • †Stromatomorpha • †Stromatomorpha californica – type locality for species • †Sturia • †Sturia woodini • †Subhungarites • †Subhungarites yatesi – type locality for species • †Submeekoceras • †Submeekoceras mushbachanum • †Submortoniceras • †Submortoniceras buttense • †Submortoniceras buttensis – type locality for species • †Submortoniceras chicoense • †Submortoniceras gabbi • †Submortoniceras pentzanum – type locality for species • †Submortoniceras randalli • †Submortoniceras studleyi • †Subprinocyclus • †Subprionocyclus • †Subprionocyclus branneri • †Subprionocyclus neptuni – or unidentified comparable form • †Subprionocyclus normalis – or unidentified comparable form • †Subprionocyclus oregonense • † Suna • †Suna ehrenbergi • †Suna haeckeli • †Suna harperi • †Sympolycyclus • †Sympolycyclus kellyi – type locality for species • †Sympolycyclus nodifer – type locality for species • †Syncyclonema • †Syncyclonema latum – type locality for species • †Syncyclonema operculiformis ==T==

• †Tappanella • †Tappanella novacubica • †Tardeceras – type locality for genus • †Tardeceras parvum – type locality for species • †Tegula • †Tegula jeanae • †Tehamatea • †Tehamatea ovalis • †Teichertus • †Teichertus cavernosus • †Teichertus notus • , or tellin Tellina'' • †Tellina – type locality for species A – informal • †Tellina alisoensis • †Tellina ashburnerii • †Tellina ooides • †Tellina paralis • †Tellina quadrata • †Tellina whitneyi • †Tenea • †Tenea inflata • †Teneposita – type locality for genus • †Teneposita laeva – type locality for species • horn sea snail Terebralia'' – tentative report • †Terebralia juliana • Terebratella • †Terebratella densleonis • Terebratulina • †Terebratulina indomita – type locality for species • †Tessarolax • †Tessarolax distorta • †Tessarolax trinalis • †Tethysetta • †Tethysetta boesii • †Tetracapsa • †Tetracapsa horokanaiensis • †Tetraditryma • †Tetraditryma coldspringensis • †Tetraditryma corralitosensis • †Tetraditryma oregonensis • †Tetraditryma praeplena • †Tetraditryma pseudoplena • †Tetragonites • †Tetragonites cala • †Tetragonites epigonum • †Tetragonites glabrus – or unidentified comparable form • †Tetragonites popetensis – type locality for species • †Tetrahoplitoides • †Tetrahoplitoides stantoni • . The frontmost portion of the snout is portrayed erroneously as straight; it actually had a pronounced downward curve †Thalattosaurus'' • †Thanarla • †Thanarla brouweri • †Thanarla elegantissima • †Thanarla praeveneta • †Thanarla veneta • †Thetironia • †Thetironia annulata • †Thisbites • †Thisbites uhligi • †Thurmanniceras • †Thurmanniceras californicum • †Thurmanniceras jenkinsi • †Thurmanniceras stippi • Thyasira • †Thyasira cretacea • †Tibetothyris – report made of unidentified related form or using admittedly obsolete nomenclature • †Tibetothyris julica • †Tibiaporrhais – tentative report • †Tollia • †Tollia giganteus • †Tornatellaea • †Tornatellaea impressa • †Tornquistites – type locality for genus • †Tornquistites evolutus – type locality for species • †Trachybaculites • †Trachybaculites columna • †Trachysagenites • †Trachysagenites erinaceus • †Trachysagenites herbichi • †Trachysagenites shastensis – type locality for species • †Trachystenoceras • †Trachystenoceras gabbi – type locality for species • †Tragodesmoceras • †Tragodesmoceras ashlandicum • †Trajanella • †Trajanella californica • †Transhsuum • †Transhsuum brevicostatum • †Traskites • †Traskites americanus – type locality for species • †Traskites californicus – type locality for species • †Traskites evolutus – type locality for species • †Traskites fairbanksi – type locality for species • †Traskites minutus – type locality for species • †Traskites nanus – type locality for species • †Traskites osmonti – type locality for species • †Traskites robustus – type locality for species • †Traskites rugosus – type locality for species • †Traskites stantoni – type locality for species • †Traskites tornquisti – type locality for species • †Triactoma • †Triactoma blakei • †Triactoma jonesi • †Triactoma kellumi • †Triactoma longoriai • †Trichinopolia • †Trichinopolia californica – type locality for species • Tricolocapsa • †Trigonarca • †Trigonarca californica – or unidentified related form • †Trigonarca californicus • †Trigonarca excavata • †Trigonia'' • †Trigonia aequicostata • †Trigonia denticulata – or unidentified comparable form • †Trigonia evansana • †Trigonia fitchi • †Trigonia hemisphaerica – or unidentified related form • †Trigonia hemphilli • †Trigonia inezana – or unidentified related form • †Trigonia jacksonensis – type locality for species • †Trigonia leana • †Trigonia perrinsmithi – type locality for species • †Trigonia plumasensis – type locality for species. Later reclassified in the new genus Californigonia as C. plumasensis. • †Trigonia spinulosa – or unidentified comparable form • †Trigonia tryoniana • †Trigonia undulata • †Trigonia vcostata – or unidentified comparable form • †Trigonocallista • †Trigonocallista bowersiana • †Trigonocallista nitida • †Trigonocallista varians • †Trillus • †Trillus elkhornensis • †Trillus seiderense – or unidentified comparable form • †Trinacria • †Trinacria cor • †Tripocyclia • †Tripocyclia brooksi • †Tripocyclia foremanae • †Tripocyclia frenchflatensis • †Tripocyclia highdomensis • †Tripocyclia mascula • †Tripocyclia saleebyi • †Tritrabs • †Tritrabs casmaliaensis • †Tritrabs ewingi • †Tritrabs exotica • †Tritrabs hayi • †Tritrabs rhododactylus • †Tritrabs suavia • †Tritrabs worzeli • †Triversus • †Triversus fastigatus • †Trochactaeon'' • †Trochactaeon frazierensis • †Trochactaeon packardi • Trochocyathus • †Trochocyathus pergranulatus – type locality for species • Trophon • †Trophon condoni • †Tropiceltites • †Tropiceltites caducus • †Tropites • †Tropites arthaberi • †Tropites brockensis – type locality for species • †Tropites dieneri – type locality for species • †Tropites dilleri – type locality for species • †Tropites fusobullatus • †Tropites hessi – type locality for species • †Tropites keili • †Tropites kellyi – type locality for species • †Tropites mojsvarensis – type locality for species • †Tropites morani – type locality for species • †Tropites reticulatus • †Tropites rotatorius – type locality for species • †Tropites rothpletzi – type locality for species • †Tropites schellwieni – type locality for species • †Tropites shastensis – type locality for species • †Tropites stearnsi – type locality for species • †Tropites ursensis – type locality for species • †Tropites welleri – type locality for species • †Tropites wodani • †Turanta • †Turanta chetcoensis • †Turanta flexa • †Turanta luminosa • †Turanta okamurai – or unidentified comparable form • †Turrilites • †Turrilites acutus • †Turrilites costatus – or unidentified comparable form • †Turrilites petersoni – type locality for species • Turritella'' • †Turritella chaneyi • †Turritella chicoensis • †Turritella hearni • †Turritella infralineata • †Turritella peninsularis – or unidentified related form • †Turritella pescaderoensis • †Turritella peterseni – or unidentified related form • †Turritella petersoni • †Turritella robertiana – or unidentified comparable form • †Turritella webbi • †Turritella xylina • †Tylostoma • †Tylostoma garzana – type locality for species ==U==